Math help please?

Question

http://prntscr.com/e8lhd3

http://prntscr.com/e8lhmb

http://prntscr.com/e8lhri

Answer 1

26)

Observe the graph,

Graph is shown domain is all real numbers except irrational numbers

and range is infinity positive to negative.

The function is

27)

Observe the graph,

Graph isshown sinusoidal wave form domain is all real numbersand range is

The function is

Answer 2

28)

Observe the graph,

Graph is shown domain is all real numbers except irrational numbers and range is

The function is

29)

The function is

Graph the function.

Observe the wave form.

The range of the function is

Answer 3

25)

Consider right angle triangle sides are

The hypotenuse of the deck will be long.

Hypotenuse,

The other two sides of the deck will be equal in length.

Since,

Find what is the length of a side of the deck.

Right angle property is

Substitute

The length of a side of the deck is